Numbering the rows of a matrix giving the same number to equal rows?

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MRC
MRC on 7 May 2014
Answered: the cyclist on 7 May 2014
Hi all, I have a matrix A mxn with some equivalent rows; the equivalent rows can only be adjacent. I want to create without looping a vector C mx1 in which I number from 1 to b<m the rows of A giving the same number to the same rows. E.g.
A=[1 2 3 4; 5 6 7 8; 5 6 7 8; 5 6 7 8; 0 0 0 0; 8 9 0 1; 8 9 0 1]
C=[1 2 2 2 3 4 4];
Could you help me?

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